Singal M. K.  Dr. <br/><br/>
Plane trigonometry / 
M. K. Singal and Asha Rani Singal 
 - New Delhi :  National Council of Educational Research and Training,  1972 
 - 296 p. ;  24 cm. 
<br/><br/><label>ISBN: </label> PB 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Plane trigonometry--Textbooks<br/>Trigonometry--Textbooks<br/>Mathematics--India--Textbooks
<br/><br/><label>Dewey Class. No.: </label>514